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efuse.c
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efuse.c
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// SPDX-License-Identifier: GPL-2.0
/* Copyright( c ) 2009-2012 Realtek Corporation.*/
#include "wifi.h"
#include "efuse.h"
#include "pci.h"
#include <linux/export.h>
static const u8 PGPKT_DATA_SIZE = 8;
static const int EFUSE_MAX_SIZE = 512;
#define START_ADDRESS 0x1000
#define REG_MCUFWDL 0x0080
static const struct rtl_efuse_ops efuse_ops = {
.efuse_onebyte_read = efuse_one_byte_read,
.efuse_logical_map_read = efuse_shadow_read,
};
static void efuse_shadow_read_1byte( struct ieee80211_hw *hw, u16 offset,
u8 *value );
static void efuse_shadow_read_2byte( struct ieee80211_hw *hw, u16 offset,
u16 *value );
static void efuse_shadow_read_4byte( struct ieee80211_hw *hw, u16 offset,
u32 *value );
static void efuse_shadow_write_1byte( struct ieee80211_hw *hw, u16 offset,
u8 value );
static void efuse_shadow_write_2byte( struct ieee80211_hw *hw, u16 offset,
u16 value );
static void efuse_shadow_write_4byte( struct ieee80211_hw *hw, u16 offset,
u32 value );
static int efuse_one_byte_write( struct ieee80211_hw *hw, u16 addr,
u8 data );
static void efuse_read_all_map( struct ieee80211_hw *hw, u8 *efuse );
static int efuse_pg_packet_read( struct ieee80211_hw *hw, u8 offset,
u8 *data );
static int efuse_pg_packet_write( struct ieee80211_hw *hw, u8 offset,
u8 word_en, u8 *data );
static void efuse_word_enable_data_read( u8 word_en, u8 *sourdata,
u8 *targetdata );
static u8 enable_efuse_data_write( struct ieee80211_hw *hw,
u16 efuse_addr, u8 word_en, u8 *data );
static u16 efuse_get_current_size( struct ieee80211_hw *hw );
static u8 efuse_calculate_word_cnts( u8 word_en );
void efuse_initialize( struct ieee80211_hw *hw )
{
struct rtl_priv *rtlpriv = rtl_priv( hw );
u8 bytetemp;
u8 temp;
bytetemp = rtl_read_byte( rtlpriv, rtlpriv->cfg->maps[SYS_FUNC_EN] + 1 );
temp = bytetemp | 0x20;
rtl_write_byte( rtlpriv, rtlpriv->cfg->maps[SYS_FUNC_EN] + 1, temp );
bytetemp = rtl_read_byte( rtlpriv, rtlpriv->cfg->maps[SYS_ISO_CTRL] + 1 );
temp = bytetemp & 0xFE;
rtl_write_byte( rtlpriv, rtlpriv->cfg->maps[SYS_ISO_CTRL] + 1, temp );
bytetemp = rtl_read_byte( rtlpriv, rtlpriv->cfg->maps[EFUSE_TEST] + 3 );
temp = bytetemp | 0x80;
rtl_write_byte( rtlpriv, rtlpriv->cfg->maps[EFUSE_TEST] + 3, temp );
rtl_write_byte( rtlpriv, 0x2F8, 0x3 );
rtl_write_byte( rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 3, 0x72 );
}
u8 efuse_read_1byte( struct ieee80211_hw *hw, u16 address )
{
struct rtl_priv *rtlpriv = rtl_priv( hw );
u8 data;
u8 bytetemp;
u8 temp;
u32 k = 0;
const u32 efuse_len =
rtlpriv->cfg->maps[EFUSE_REAL_CONTENT_SIZE];
if ( address < efuse_len ) {
temp = address & 0xFF;
rtl_write_byte( rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 1,
temp );
bytetemp = rtl_read_byte( rtlpriv,
rtlpriv->cfg->maps[EFUSE_CTRL] + 2 );
temp = ( ( address >> 8 ) & 0x03 ) | ( bytetemp & 0xFC );
rtl_write_byte( rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 2,
temp );
bytetemp = rtl_read_byte( rtlpriv,
rtlpriv->cfg->maps[EFUSE_CTRL] + 3 );
temp = bytetemp & 0x7F;
rtl_write_byte( rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 3,
temp );
bytetemp = rtl_read_byte( rtlpriv,
rtlpriv->cfg->maps[EFUSE_CTRL] + 3 );
while ( !( bytetemp & 0x80 ) ) {
bytetemp = rtl_read_byte( rtlpriv,
rtlpriv->cfg->
maps[EFUSE_CTRL] + 3 );
k++;
if ( k == 1000 )
break;
}
data = rtl_read_byte( rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] );
return data;
} else
return 0xFF;
}
EXPORT_SYMBOL( efuse_read_1byte );
void efuse_write_1byte( struct ieee80211_hw *hw, u16 address, u8 value )
{
struct rtl_priv *rtlpriv = rtl_priv( hw );
u8 bytetemp;
u8 temp;
u32 k = 0;
const u32 efuse_len =
rtlpriv->cfg->maps[EFUSE_REAL_CONTENT_SIZE];
RT_TRACE( rtlpriv, COMP_EFUSE, DBG_LOUD, "Addr=%x Data =%x\n",
address, value );
if ( address < efuse_len ) {
rtl_write_byte( rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL], value );
temp = address & 0xFF;
rtl_write_byte( rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 1,
temp );
bytetemp = rtl_read_byte( rtlpriv,
rtlpriv->cfg->maps[EFUSE_CTRL] + 2 );
temp = ( ( address >> 8 ) & 0x03 ) | ( bytetemp & 0xFC );
rtl_write_byte( rtlpriv,
rtlpriv->cfg->maps[EFUSE_CTRL] + 2, temp );
bytetemp = rtl_read_byte( rtlpriv,
rtlpriv->cfg->maps[EFUSE_CTRL] + 3 );
temp = bytetemp | 0x80;
rtl_write_byte( rtlpriv,
rtlpriv->cfg->maps[EFUSE_CTRL] + 3, temp );
bytetemp = rtl_read_byte( rtlpriv,
rtlpriv->cfg->maps[EFUSE_CTRL] + 3 );
while ( bytetemp & 0x80 ) {
bytetemp = rtl_read_byte( rtlpriv,
rtlpriv->cfg->
maps[EFUSE_CTRL] + 3 );
k++;
if ( k == 100 ) {
k = 0;
break;
}
}
}
}
void read_efuse_byte( struct ieee80211_hw *hw, u16 _offset, u8 *pbuf )
{
struct rtl_priv *rtlpriv = rtl_priv( hw );
u32 value32;
u8 readbyte;
u16 retry;
rtl_write_byte( rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 1,
( _offset & 0xff ) );
readbyte = rtl_read_byte( rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 2 );
rtl_write_byte( rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 2,
( ( _offset >> 8 ) & 0x03 ) | ( readbyte & 0xfc ) );
readbyte = rtl_read_byte( rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 3 );
rtl_write_byte( rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 3,
( readbyte & 0x7f ) );
retry = 0;
value32 = rtl_read_dword( rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] );
while ( !( ( ( value32 >> 24 ) & 0xff ) & 0x80 ) && ( retry < 10000 ) ) {
value32 = rtl_read_dword( rtlpriv,
rtlpriv->cfg->maps[EFUSE_CTRL] );
retry++;
}
udelay( 50 );
value32 = rtl_read_dword( rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] );
*pbuf = ( u8 ) ( value32 & 0xff );
}
EXPORT_SYMBOL_GPL( read_efuse_byte );
void read_efuse( struct ieee80211_hw *hw, u16 _offset, u16 _size_byte, u8 *pbuf )
{
struct rtl_priv *rtlpriv = rtl_priv( hw );
struct rtl_efuse *rtlefuse = rtl_efuse( rtl_priv( hw ) );
u8 *efuse_tbl;
u8 rtemp8[1];
u16 efuse_addr = 0;
u8 offset, wren;
u8 u1temp = 0;
u16 i;
u16 j;
const u16 efuse_max_section =
rtlpriv->cfg->maps[EFUSE_MAX_SECTION_MAP];
const u32 efuse_len =
rtlpriv->cfg->maps[EFUSE_REAL_CONTENT_SIZE];
u16 **efuse_word;
u16 efuse_utilized = 0;
u8 efuse_usage;
if ( ( _offset + _size_byte ) > rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE] ) {
RT_TRACE( rtlpriv, COMP_EFUSE, DBG_LOUD,
"read_efuse(): Invalid offset(%#x) with read bytes(%#x)!!\n",
_offset, _size_byte );
return;
}
/* allocate memory for efuse_tbl and efuse_word */
efuse_tbl = kzalloc( rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE],
GFP_ATOMIC );
if ( !efuse_tbl )
return;
efuse_word = kcalloc( EFUSE_MAX_WORD_UNIT, sizeof( u16 * ), GFP_ATOMIC );
if ( !efuse_word )
goto out;
for ( i = 0; i < EFUSE_MAX_WORD_UNIT; i++ ) {
efuse_word[i] = kcalloc( efuse_max_section, sizeof( u16 ),
GFP_ATOMIC );
if ( !efuse_word[i] )
goto done;
}
for ( i = 0; i < efuse_max_section; i++ )
for ( j = 0; j < EFUSE_MAX_WORD_UNIT; j++ )
efuse_word[j][i] = 0xFFFF;
read_efuse_byte( hw, efuse_addr, rtemp8 );
if ( *rtemp8 != 0xFF ) {
efuse_utilized++;
RTPRINT( rtlpriv, FEEPROM, EFUSE_READ_ALL,
"Addr=%d\n", efuse_addr );
efuse_addr++;
}
while ( ( *rtemp8 != 0xFF ) && ( efuse_addr < efuse_len ) ) {
/* Check PG header for section num. */
if ( ( *rtemp8 & 0x1F ) == 0x0F ) {/* extended header */
u1temp = ( ( *rtemp8 & 0xE0 ) >> 5 );
read_efuse_byte( hw, efuse_addr, rtemp8 );
if ( ( *rtemp8 & 0x0F ) == 0x0F ) {
efuse_addr++;
read_efuse_byte( hw, efuse_addr, rtemp8 );
if ( *rtemp8 != 0xFF &&
( efuse_addr < efuse_len ) ) {
efuse_addr++;
}
continue;
} else {
offset = ( ( *rtemp8 & 0xF0 ) >> 1 ) | u1temp;
wren = ( *rtemp8 & 0x0F );
efuse_addr++;
}
} else {
offset = ( ( *rtemp8 >> 4 ) & 0x0f );
wren = ( *rtemp8 & 0x0f );
}
if ( offset < efuse_max_section ) {
RTPRINT( rtlpriv, FEEPROM, EFUSE_READ_ALL,
"offset-%d Worden=%x\n", offset, wren );
for ( i = 0; i < EFUSE_MAX_WORD_UNIT; i++ ) {
if ( !( wren & 0x01 ) ) {
RTPRINT( rtlpriv, FEEPROM,
EFUSE_READ_ALL,
"Addr=%d\n", efuse_addr );
read_efuse_byte( hw, efuse_addr, rtemp8 );
efuse_addr++;
efuse_utilized++;
efuse_word[i][offset] =
( *rtemp8 & 0xff );
if ( efuse_addr >= efuse_len )
break;
RTPRINT( rtlpriv, FEEPROM,
EFUSE_READ_ALL,
"Addr=%d\n", efuse_addr );
read_efuse_byte( hw, efuse_addr, rtemp8 );
efuse_addr++;
efuse_utilized++;
efuse_word[i][offset] |=
( ( ( u16 )*rtemp8 << 8 ) & 0xff00 );
if ( efuse_addr >= efuse_len )
break;
}
wren >>= 1;
}
}
RTPRINT( rtlpriv, FEEPROM, EFUSE_READ_ALL,
"Addr=%d\n", efuse_addr );
read_efuse_byte( hw, efuse_addr, rtemp8 );
if ( *rtemp8 != 0xFF && ( efuse_addr < efuse_len ) ) {
efuse_utilized++;
efuse_addr++;
}
}
for ( i = 0; i < efuse_max_section; i++ ) {
for ( j = 0; j < EFUSE_MAX_WORD_UNIT; j++ ) {
efuse_tbl[( i * 8 ) + ( j * 2 )] =
( efuse_word[j][i] & 0xff );
efuse_tbl[( i * 8 ) + ( ( j * 2 ) + 1 )] =
( ( efuse_word[j][i] >> 8 ) & 0xff );
}
}
for ( i = 0; i < _size_byte; i++ )
pbuf[i] = efuse_tbl[_offset + i];
rtlefuse->efuse_usedbytes = efuse_utilized;
efuse_usage = ( u8 ) ( ( efuse_utilized * 100 ) / efuse_len );
rtlefuse->efuse_usedpercentage = efuse_usage;
rtlpriv->cfg->ops->set_hw_reg( hw, HW_VAR_EFUSE_BYTES,
( u8 * )&efuse_utilized );
rtlpriv->cfg->ops->set_hw_reg( hw, HW_VAR_EFUSE_USAGE,
&efuse_usage );
done:
for ( i = 0; i < EFUSE_MAX_WORD_UNIT; i++ )
kfree( efuse_word[i] );
kfree( efuse_word );
out:
kfree( efuse_tbl );
}
bool efuse_shadow_update_chk( struct ieee80211_hw *hw )
{
struct rtl_priv *rtlpriv = rtl_priv( hw );
struct rtl_efuse *rtlefuse = rtl_efuse( rtl_priv( hw ) );
u8 section_idx, i, base;
u16 words_need = 0, hdr_num = 0, totalbytes, efuse_used;
bool wordchanged, result = true;
for ( section_idx = 0; section_idx < 16; section_idx++ ) {
base = section_idx * 8;
wordchanged = false;
for ( i = 0; i < 8; i = i + 2 ) {
if ( rtlefuse->efuse_map[EFUSE_INIT_MAP][base + i] !=
rtlefuse->efuse_map[EFUSE_MODIFY_MAP][base + i] ||
rtlefuse->efuse_map[EFUSE_INIT_MAP][base + i + 1] !=
rtlefuse->efuse_map[EFUSE_MODIFY_MAP][base + i +
1] ) {
words_need++;
wordchanged = true;
}
}
if ( wordchanged )
hdr_num++;
}
totalbytes = hdr_num + words_need * 2;
efuse_used = rtlefuse->efuse_usedbytes;
if ( ( totalbytes + efuse_used ) >=
( EFUSE_MAX_SIZE - rtlpriv->cfg->maps[EFUSE_OOB_PROTECT_BYTES_LEN] ) )
result = false;
RT_TRACE( rtlpriv, COMP_EFUSE, DBG_LOUD,
"efuse_shadow_update_chk(): totalbytes(%#x), hdr_num(%#x), words_need(%#x), efuse_used(%d)\n",
totalbytes, hdr_num, words_need, efuse_used );
return result;
}
void efuse_shadow_read( struct ieee80211_hw *hw, u8 type,
u16 offset, u32 *value )
{
if ( type == 1 )
efuse_shadow_read_1byte( hw, offset, ( u8 * )value );
else if ( type == 2 )
efuse_shadow_read_2byte( hw, offset, ( u16 * )value );
else if ( type == 4 )
efuse_shadow_read_4byte( hw, offset, value );
}
EXPORT_SYMBOL( efuse_shadow_read );
void efuse_shadow_write( struct ieee80211_hw *hw, u8 type, u16 offset,
u32 value )
{
if ( type == 1 )
efuse_shadow_write_1byte( hw, offset, ( u8 ) value );
else if ( type == 2 )
efuse_shadow_write_2byte( hw, offset, ( u16 ) value );
else if ( type == 4 )
efuse_shadow_write_4byte( hw, offset, value );
}
bool efuse_shadow_update( struct ieee80211_hw *hw )
{
struct rtl_priv *rtlpriv = rtl_priv( hw );
struct rtl_efuse *rtlefuse = rtl_efuse( rtl_priv( hw ) );
u16 i, offset, base;
u8 word_en = 0x0F;
u8 first_pg = false;
RT_TRACE( rtlpriv, COMP_EFUSE, DBG_LOUD, "\n" );
if ( !efuse_shadow_update_chk( hw ) ) {
efuse_read_all_map( hw, &rtlefuse->efuse_map[EFUSE_INIT_MAP][0] );
memcpy( &rtlefuse->efuse_map[EFUSE_MODIFY_MAP][0],
&rtlefuse->efuse_map[EFUSE_INIT_MAP][0],
rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE] );
RT_TRACE( rtlpriv, COMP_EFUSE, DBG_LOUD,
"efuse out of capacity!!\n" );
return false;
}
efuse_power_switch( hw, true, true );
for ( offset = 0; offset < 16; offset++ ) {
word_en = 0x0F;
base = offset * 8;
for ( i = 0; i < 8; i++ ) {
if ( first_pg ) {
word_en &= ~( BIT( i / 2 ) );
rtlefuse->efuse_map[EFUSE_INIT_MAP][base + i] =
rtlefuse->efuse_map[EFUSE_MODIFY_MAP][base + i];
} else {
if ( rtlefuse->efuse_map[EFUSE_INIT_MAP][base + i] !=
rtlefuse->efuse_map[EFUSE_MODIFY_MAP][base + i] ) {
word_en &= ~( BIT( i / 2 ) );
rtlefuse->efuse_map[EFUSE_INIT_MAP][base + i] =
rtlefuse->efuse_map[EFUSE_MODIFY_MAP][base + i];
}
}
}
if ( word_en != 0x0F ) {
u8 tmpdata[8];
memcpy( tmpdata,
&rtlefuse->efuse_map[EFUSE_MODIFY_MAP][base],
8 );
RT_PRINT_DATA( rtlpriv, COMP_INIT, DBG_LOUD,
"U-efuse\n", tmpdata, 8 );
if ( !efuse_pg_packet_write( hw, ( u8 ) offset, word_en,
tmpdata ) ) {
RT_TRACE( rtlpriv, COMP_ERR, DBG_WARNING,
"PG section(%#x) fail!!\n", offset );
break;
}
}
}
efuse_power_switch( hw, true, false );
efuse_read_all_map( hw, &rtlefuse->efuse_map[EFUSE_INIT_MAP][0] );
memcpy( &rtlefuse->efuse_map[EFUSE_MODIFY_MAP][0],
&rtlefuse->efuse_map[EFUSE_INIT_MAP][0],
rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE] );
RT_TRACE( rtlpriv, COMP_EFUSE, DBG_LOUD, "\n" );
return true;
}
void rtl_efuse_shadow_map_update( struct ieee80211_hw *hw )
{
struct rtl_priv *rtlpriv = rtl_priv( hw );
struct rtl_efuse *rtlefuse = rtl_efuse( rtl_priv( hw ) );
if ( rtlefuse->autoload_failflag )
memset( ( &rtlefuse->efuse_map[EFUSE_INIT_MAP][0] ),
0xFF, rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE] );
else
efuse_read_all_map( hw, &rtlefuse->efuse_map[EFUSE_INIT_MAP][0] );
memcpy( &rtlefuse->efuse_map[EFUSE_MODIFY_MAP][0],
&rtlefuse->efuse_map[EFUSE_INIT_MAP][0],
rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE] );
}
EXPORT_SYMBOL( rtl_efuse_shadow_map_update );
void efuse_force_write_vendor_id( struct ieee80211_hw *hw )
{
u8 tmpdata[8] = { 0xFF, 0xFF, 0xEC, 0x10, 0xFF, 0xFF, 0xFF, 0xFF };
efuse_power_switch( hw, true, true );
efuse_pg_packet_write( hw, 1, 0xD, tmpdata );
efuse_power_switch( hw, true, false );
}
void efuse_re_pg_section( struct ieee80211_hw *hw, u8 section_idx )
{
}
static void efuse_shadow_read_1byte( struct ieee80211_hw *hw,
u16 offset, u8 *value )
{
struct rtl_efuse *rtlefuse = rtl_efuse( rtl_priv( hw ) );
*value = rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset];
}
static void efuse_shadow_read_2byte( struct ieee80211_hw *hw,
u16 offset, u16 *value )
{
struct rtl_efuse *rtlefuse = rtl_efuse( rtl_priv( hw ) );
*value = rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset];
*value |= rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 1] << 8;
}
static void efuse_shadow_read_4byte( struct ieee80211_hw *hw,
u16 offset, u32 *value )
{
struct rtl_efuse *rtlefuse = rtl_efuse( rtl_priv( hw ) );
*value = rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset];
*value |= rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 1] << 8;
*value |= rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 2] << 16;
*value |= rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 3] << 24;
}
static void efuse_shadow_write_1byte( struct ieee80211_hw *hw,
u16 offset, u8 value )
{
struct rtl_efuse *rtlefuse = rtl_efuse( rtl_priv( hw ) );
rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset] = value;
}
static void efuse_shadow_write_2byte( struct ieee80211_hw *hw,
u16 offset, u16 value )
{
struct rtl_efuse *rtlefuse = rtl_efuse( rtl_priv( hw ) );
rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset] = value & 0x00FF;
rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 1] = value >> 8;
}
static void efuse_shadow_write_4byte( struct ieee80211_hw *hw,
u16 offset, u32 value )
{
struct rtl_efuse *rtlefuse = rtl_efuse( rtl_priv( hw ) );
rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset] =
( u8 ) ( value & 0x000000FF );
rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 1] =
( u8 ) ( ( value >> 8 ) & 0x0000FF );
rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 2] =
( u8 ) ( ( value >> 16 ) & 0x00FF );
rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 3] =
( u8 ) ( ( value >> 24 ) & 0xFF );
}
int efuse_one_byte_read( struct ieee80211_hw *hw, u16 addr, u8 *data )
{
struct rtl_priv *rtlpriv = rtl_priv( hw );
u8 tmpidx = 0;
int result;
rtl_write_byte( rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 1,
( u8 ) ( addr & 0xff ) );
rtl_write_byte( rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 2,
( ( u8 ) ( ( addr >> 8 ) & 0x03 ) ) |
( rtl_read_byte( rtlpriv,
rtlpriv->cfg->maps[EFUSE_CTRL] + 2 ) &
0xFC ) );
rtl_write_byte( rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 3, 0x72 );
while ( !( 0x80 & rtl_read_byte( rtlpriv,
rtlpriv->cfg->maps[EFUSE_CTRL] + 3 ) )
&& ( tmpidx < 100 ) ) {
tmpidx++;
}
if ( tmpidx < 100 ) {
*data = rtl_read_byte( rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] );
result = true;
} else {
*data = 0xff;
result = false;
}
return result;
}
EXPORT_SYMBOL( efuse_one_byte_read );
static int efuse_one_byte_write( struct ieee80211_hw *hw, u16 addr, u8 data )
{
struct rtl_priv *rtlpriv = rtl_priv( hw );
u8 tmpidx = 0;
RT_TRACE( rtlpriv, COMP_EFUSE, DBG_LOUD,
"Addr = %x Data=%x\n", addr, data );
rtl_write_byte( rtlpriv,
rtlpriv->cfg->maps[EFUSE_CTRL] + 1, ( u8 ) ( addr & 0xff ) );
rtl_write_byte( rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 2,
( rtl_read_byte( rtlpriv,
rtlpriv->cfg->maps[EFUSE_CTRL] +
2 ) & 0xFC ) | ( u8 ) ( ( addr >> 8 ) & 0x03 ) );
rtl_write_byte( rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL], data );
rtl_write_byte( rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 3, 0xF2 );
while ( ( 0x80 & rtl_read_byte( rtlpriv,
rtlpriv->cfg->maps[EFUSE_CTRL] + 3 ) )
&& ( tmpidx < 100 ) ) {
tmpidx++;
}
if ( tmpidx < 100 )
return true;
return false;
}
static void efuse_read_all_map( struct ieee80211_hw *hw, u8 *efuse )
{
struct rtl_priv *rtlpriv = rtl_priv( hw );
efuse_power_switch( hw, false, true );
read_efuse( hw, 0, rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE], efuse );
efuse_power_switch( hw, false, false );
}
static void efuse_read_data_case1( struct ieee80211_hw *hw, u16 *efuse_addr,
u8 efuse_data, u8 offset, u8 *tmpdata,
u8 *readstate )
{
bool dataempty = true;
u8 hoffset;
u8 tmpidx;
u8 hworden;
u8 word_cnts;
hoffset = ( efuse_data >> 4 ) & 0x0F;
hworden = efuse_data & 0x0F;
word_cnts = efuse_calculate_word_cnts( hworden );
if ( hoffset == offset ) {
for ( tmpidx = 0; tmpidx < word_cnts * 2; tmpidx++ ) {
if ( efuse_one_byte_read( hw, *efuse_addr + 1 + tmpidx,
&efuse_data ) ) {
tmpdata[tmpidx] = efuse_data;
if ( efuse_data != 0xff )
dataempty = false;
}
}
if ( !dataempty ) {
*readstate = PG_STATE_DATA;
} else {
*efuse_addr = *efuse_addr + ( word_cnts * 2 ) + 1;
*readstate = PG_STATE_HEADER;
}
} else {
*efuse_addr = *efuse_addr + ( word_cnts * 2 ) + 1;
*readstate = PG_STATE_HEADER;
}
}
static int efuse_pg_packet_read( struct ieee80211_hw *hw, u8 offset, u8 *data )
{
u8 readstate = PG_STATE_HEADER;
bool continual = true;
u8 efuse_data, word_cnts = 0;
u16 efuse_addr = 0;
u8 tmpdata[8];
if ( data == NULL )
return false;
if ( offset > 15 )
return false;
memset( data, 0xff, PGPKT_DATA_SIZE * sizeof( u8 ) );
memset( tmpdata, 0xff, PGPKT_DATA_SIZE * sizeof( u8 ) );
while ( continual && ( efuse_addr < EFUSE_MAX_SIZE ) ) {
if ( readstate & PG_STATE_HEADER ) {
if ( efuse_one_byte_read( hw, efuse_addr, &efuse_data )
&& ( efuse_data != 0xFF ) )
efuse_read_data_case1( hw, &efuse_addr,
efuse_data, offset,
tmpdata, &readstate );
else
continual = false;
} else if ( readstate & PG_STATE_DATA ) {
efuse_word_enable_data_read( 0, tmpdata, data );
efuse_addr = efuse_addr + ( word_cnts * 2 ) + 1;
readstate = PG_STATE_HEADER;
}
}
if ( ( data[0] == 0xff ) && ( data[1] == 0xff ) &&
( data[2] == 0xff ) && ( data[3] == 0xff ) &&
( data[4] == 0xff ) && ( data[5] == 0xff ) &&
( data[6] == 0xff ) && ( data[7] == 0xff ) )
return false;
else
return true;
}
static void efuse_write_data_case1( struct ieee80211_hw *hw, u16 *efuse_addr,
u8 efuse_data, u8 offset,
int *continual, u8 *write_state,
struct pgpkt_struct *target_pkt,
int *repeat_times, int *result, u8 word_en )
{
struct rtl_priv *rtlpriv = rtl_priv( hw );
struct pgpkt_struct tmp_pkt;
int dataempty = true;
u8 originaldata[8 * sizeof( u8 )];
u8 badworden = 0x0F;
u8 match_word_en, tmp_word_en;
u8 tmpindex;
u8 tmp_header = efuse_data;
u8 tmp_word_cnts;
tmp_pkt.offset = ( tmp_header >> 4 ) & 0x0F;
tmp_pkt.word_en = tmp_header & 0x0F;
tmp_word_cnts = efuse_calculate_word_cnts( tmp_pkt.word_en );
if ( tmp_pkt.offset != target_pkt->offset ) {
*efuse_addr = *efuse_addr + ( tmp_word_cnts * 2 ) + 1;
*write_state = PG_STATE_HEADER;
} else {
for ( tmpindex = 0; tmpindex < ( tmp_word_cnts * 2 ); tmpindex++ ) {
if ( efuse_one_byte_read( hw,
( *efuse_addr + 1 + tmpindex ),
&efuse_data ) &&
( efuse_data != 0xFF ) )
dataempty = false;
}
if ( !dataempty ) {
*efuse_addr = *efuse_addr + ( tmp_word_cnts * 2 ) + 1;
*write_state = PG_STATE_HEADER;
} else {
match_word_en = 0x0F;
if ( !( ( target_pkt->word_en & BIT( 0 ) ) |
( tmp_pkt.word_en & BIT( 0 ) ) ) )
match_word_en &= ( ~BIT( 0 ) );
if ( !( ( target_pkt->word_en & BIT( 1 ) ) |
( tmp_pkt.word_en & BIT( 1 ) ) ) )
match_word_en &= ( ~BIT( 1 ) );
if ( !( ( target_pkt->word_en & BIT( 2 ) ) |
( tmp_pkt.word_en & BIT( 2 ) ) ) )
match_word_en &= ( ~BIT( 2 ) );
if ( !( ( target_pkt->word_en & BIT( 3 ) ) |
( tmp_pkt.word_en & BIT( 3 ) ) ) )
match_word_en &= ( ~BIT( 3 ) );
if ( ( match_word_en & 0x0F ) != 0x0F ) {
badworden =
enable_efuse_data_write( hw,
*efuse_addr + 1,
tmp_pkt.word_en,
target_pkt->data );
if ( 0x0F != ( badworden & 0x0F ) ) {
u8 reorg_offset = offset;
u8 reorg_worden = badworden;
efuse_pg_packet_write( hw, reorg_offset,
reorg_worden,
originaldata );
}
tmp_word_en = 0x0F;
if ( ( target_pkt->word_en & BIT( 0 ) ) ^
( match_word_en & BIT( 0 ) ) )
tmp_word_en &= ( ~BIT( 0 ) );
if ( ( target_pkt->word_en & BIT( 1 ) ) ^
( match_word_en & BIT( 1 ) ) )
tmp_word_en &= ( ~BIT( 1 ) );
if ( ( target_pkt->word_en & BIT( 2 ) ) ^
( match_word_en & BIT( 2 ) ) )
tmp_word_en &= ( ~BIT( 2 ) );
if ( ( target_pkt->word_en & BIT( 3 ) ) ^
( match_word_en & BIT( 3 ) ) )
tmp_word_en &= ( ~BIT( 3 ) );
if ( ( tmp_word_en & 0x0F ) != 0x0F ) {
*efuse_addr = efuse_get_current_size( hw );
target_pkt->offset = offset;
target_pkt->word_en = tmp_word_en;
} else {
*continual = false;
}
*write_state = PG_STATE_HEADER;
*repeat_times += 1;
if ( *repeat_times > EFUSE_REPEAT_THRESHOLD_ ) {
*continual = false;
*result = false;
}
} else {
*efuse_addr += ( 2 * tmp_word_cnts ) + 1;
target_pkt->offset = offset;
target_pkt->word_en = word_en;
*write_state = PG_STATE_HEADER;
}
}
}
RTPRINT( rtlpriv, FEEPROM, EFUSE_PG, "efuse PG_STATE_HEADER-1\n" );
}
static void efuse_write_data_case2( struct ieee80211_hw *hw, u16 *efuse_addr,
int *continual, u8 *write_state,
struct pgpkt_struct target_pkt,
int *repeat_times, int *result )
{
struct rtl_priv *rtlpriv = rtl_priv( hw );
struct pgpkt_struct tmp_pkt;
u8 pg_header;
u8 tmp_header;
u8 originaldata[8 * sizeof( u8 )];
u8 tmp_word_cnts;
u8 badworden = 0x0F;
pg_header = ( ( target_pkt.offset << 4 ) & 0xf0 ) | target_pkt.word_en;
efuse_one_byte_write( hw, *efuse_addr, pg_header );
efuse_one_byte_read( hw, *efuse_addr, &tmp_header );
if ( tmp_header == pg_header ) {
*write_state = PG_STATE_DATA;
} else if ( tmp_header == 0xFF ) {
*write_state = PG_STATE_HEADER;
*repeat_times += 1;
if ( *repeat_times > EFUSE_REPEAT_THRESHOLD_ ) {
*continual = false;
*result = false;
}
} else {
tmp_pkt.offset = ( tmp_header >> 4 ) & 0x0F;
tmp_pkt.word_en = tmp_header & 0x0F;
tmp_word_cnts = efuse_calculate_word_cnts( tmp_pkt.word_en );
memset( originaldata, 0xff, 8 * sizeof( u8 ) );
if ( efuse_pg_packet_read( hw, tmp_pkt.offset, originaldata ) ) {
badworden = enable_efuse_data_write( hw,
*efuse_addr + 1,
tmp_pkt.word_en,
originaldata );
if ( 0x0F != ( badworden & 0x0F ) ) {
u8 reorg_offset = tmp_pkt.offset;
u8 reorg_worden = badworden;
efuse_pg_packet_write( hw, reorg_offset,
reorg_worden,
originaldata );
*efuse_addr = efuse_get_current_size( hw );
} else {
*efuse_addr = *efuse_addr +
( tmp_word_cnts * 2 ) + 1;
}
} else {
*efuse_addr = *efuse_addr + ( tmp_word_cnts * 2 ) + 1;
}
*write_state = PG_STATE_HEADER;
*repeat_times += 1;
if ( *repeat_times > EFUSE_REPEAT_THRESHOLD_ ) {
*continual = false;
*result = false;
}
RTPRINT( rtlpriv, FEEPROM, EFUSE_PG,
"efuse PG_STATE_HEADER-2\n" );
}
}
static int efuse_pg_packet_write( struct ieee80211_hw *hw,
u8 offset, u8 word_en, u8 *data )
{
struct rtl_priv *rtlpriv = rtl_priv( hw );
struct pgpkt_struct target_pkt;
u8 write_state = PG_STATE_HEADER;
int continual = true, result = true;
u16 efuse_addr = 0;
u8 efuse_data;
u8 target_word_cnts = 0;
u8 badworden = 0x0F;
static int repeat_times;
if ( efuse_get_current_size( hw ) >= ( EFUSE_MAX_SIZE -
rtlpriv->cfg->maps[EFUSE_OOB_PROTECT_BYTES_LEN] ) ) {
RTPRINT( rtlpriv, FEEPROM, EFUSE_PG,
"efuse_pg_packet_write error\n" );
return false;
}
target_pkt.offset = offset;
target_pkt.word_en = word_en;
memset( target_pkt.data, 0xFF, 8 * sizeof( u8 ) );
efuse_word_enable_data_read( word_en, data, target_pkt.data );
target_word_cnts = efuse_calculate_word_cnts( target_pkt.word_en );
RTPRINT( rtlpriv, FEEPROM, EFUSE_PG, "efuse Power ON\n" );
while ( continual && ( efuse_addr < ( EFUSE_MAX_SIZE -
rtlpriv->cfg->maps[EFUSE_OOB_PROTECT_BYTES_LEN] ) ) ) {
if ( write_state == PG_STATE_HEADER ) {
badworden = 0x0F;
RTPRINT( rtlpriv, FEEPROM, EFUSE_PG,
"efuse PG_STATE_HEADER\n" );
if ( efuse_one_byte_read( hw, efuse_addr, &efuse_data ) &&
( efuse_data != 0xFF ) )
efuse_write_data_case1( hw, &efuse_addr,
efuse_data, offset,
&continual,
&write_state,
&target_pkt,
&repeat_times, &result,
word_en );
else
efuse_write_data_case2( hw, &efuse_addr,
&continual,
&write_state,
target_pkt,
&repeat_times,
&result );
} else if ( write_state == PG_STATE_DATA ) {
RTPRINT( rtlpriv, FEEPROM, EFUSE_PG,
"efuse PG_STATE_DATA\n" );
badworden =
enable_efuse_data_write( hw, efuse_addr + 1,
target_pkt.word_en,
target_pkt.data );
if ( ( badworden & 0x0F ) == 0x0F ) {
continual = false;
} else {
efuse_addr =
efuse_addr + ( 2 * target_word_cnts ) + 1;
target_pkt.offset = offset;
target_pkt.word_en = badworden;
target_word_cnts =
efuse_calculate_word_cnts( target_pkt.
word_en );
write_state = PG_STATE_HEADER;
repeat_times++;
if ( repeat_times > EFUSE_REPEAT_THRESHOLD_ ) {
continual = false;
result = false;
}
RTPRINT( rtlpriv, FEEPROM, EFUSE_PG,
"efuse PG_STATE_HEADER-3\n" );
}
}
}
if ( efuse_addr >= ( EFUSE_MAX_SIZE -
rtlpriv->cfg->maps[EFUSE_OOB_PROTECT_BYTES_LEN] ) ) {
RT_TRACE( rtlpriv, COMP_EFUSE, DBG_LOUD,
"efuse_addr(%#x) Out of size!!\n", efuse_addr );